North America Native Plant

Geno

Botanical name: Lonchocarpus glaucifolius

USDA symbol: LOGL2

Life cycle: perennial

Habit: tree

Native status: Native to Puerto Rico  

Geno Tree: A Native Puerto Rican Beauty Worth Discovering If you’re passionate about native gardening and happen to be gardening in Puerto Rico, you might want to get acquainted with the geno tree (Lonchocarpus glaucifolius). This native treasure represents the kind of plant that makes local ecosystems tick, even if ...

Geno Tree: A Native Puerto Rican Beauty Worth Discovering

If you’re passionate about native gardening and happen to be gardening in Puerto Rico, you might want to get acquainted with the geno tree (Lonchocarpus glaucifolius). This native treasure represents the kind of plant that makes local ecosystems tick, even if it hasn’t quite made it into the mainstream gardening spotlight yet.

What Makes Geno Special?

The geno tree is a perennial woody species that’s 100% Puerto Rican born and raised. As a member of the legume family, it likely plays an important role in its native ecosystem, though specific details about its ecological relationships remain somewhat mysterious in gardening literature.

This isn’t your typical compact garden tree – we’re talking about a substantial specimen that can grow well over 13-16 feet tall under ideal conditions. Like many trees, it typically develops a single main trunk, though environmental factors might occasionally encourage a more multi-stemmed growth pattern.

Where You’ll Find Geno Growing Wild

Lonchocarpus glaucifolius calls Puerto Rico home and doesn’t naturally venture beyond these island borders. This makes it a true endemic species – something special that belongs specifically to Puerto Rican landscapes.

Should You Plant Geno in Your Garden?

Here’s where things get a bit tricky. While supporting native plants is always a wonderful goal for any gardener, detailed cultivation information for geno trees is surprisingly scarce. This doesn’t mean it’s impossible to grow – it just means you’d be venturing into somewhat uncharted gardening territory.

The Native Plant Advantage

Choosing native species like geno offers several benefits:

  • Supports local wildlife and ecosystem health
  • Typically requires less water and maintenance once established
  • Helps preserve Puerto Rico’s unique botanical heritage
  • Reduces reliance on non-native species that might not support local wildlife

The Growing Challenge

Unfortunately, specific growing requirements, hardiness information, and cultivation tips for Lonchocarpus glaucifolius aren’t widely documented in gardening resources. This presents both a challenge and an opportunity for adventurous native plant enthusiasts.

If you’re determined to try growing geno, your best bet would be to:

  • Connect with local native plant societies or botanical gardens in Puerto Rico
  • Observe the tree’s natural growing conditions in the wild
  • Start small and be prepared for some trial and error
  • Consider it a long-term gardening experiment rather than a sure thing

The Bottom Line

Lonchocarpus glaucifolius represents the kind of native plant that deserves more attention from gardeners and researchers alike. While we can’t provide detailed growing instructions, we can appreciate its value as part of Puerto Rico’s natural heritage.

If you’re not ready to tackle the challenge of growing this lesser-known native, consider exploring other well-documented Puerto Rican native trees that might offer similar ecological benefits with more reliable growing information. Your local extension office or native plant society can point you toward native alternatives with proven track records in cultivation.

Sometimes the most rewarding native gardening adventures begin with the plants that nobody’s talking about yet. Who knows? You might just become the gardener who helps bring geno trees into the mainstream native plant conversation.

Geno

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lonchocarpus Kunth - lancepod

Species

Lonchocarpus glaucifolius Urb. - geno

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA